[Ffmpeg-devel] Re: [PATCH] DVCPRO50 support

Baptiste COUDURIER baptiste.coudurier
Fri Mar 3 22:36:42 CET 2006

Roman Shaposhnick wrote:
>   I guess it depends on what the user model is: basically do we want to 
>   burden the users with the knowledge of all different DV flavors out
>   there (which is not a huge number, so I'm just asking) but free from
>   a burden of knowing pix_fmt, frame resolution and such (ffmpeg will
>   do the right thing) or is it the other way around -- we only want
>   users to know what their desired constraints are and let ffmpeg 
>   figure out the best CODEC for them.
>   Personally -- I don't really have a preference, but then again I feel
>   that mapping:
>    (CODEC family, pix_fmt, resolution, bitstream constraints) -> CODEC parameters
>   should be a generic thing. Its not just about DV.

Well suppose you have a sample 720x576 yuv420p

ffmpeg -i <file> -pix_fmt yuv422p -vcodec dvvideo out.mov makes it
DVCPRO50. Personnaly I don't mind but I think -vcodec dvcpro50 is more
understandable, forcing PIX_FMT_YUV422P in AVCodec.

same for a sample with yuv422p if you want to do dv25.
But I guess this problem is very relative to DV.

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